Accession No

4539

Brief Description

electrical instrument by Reid Bros, 1903

Origin

London; England

Maker

Reid Bros.

Class

electrical

Earliest Date

1903

Latest Date

1903

Inscription Date

1903

Material

metal (brass, copper, steel, white metal); glass; wood (mahogany); hide (leather)

Dimensions

base diameter 136mm; height 123mm

Special Collection

Provenance

Gifted by the Department of Zoology, University of Cambridge, on 03/07/1991.

Inscription

‘REID BROS.
LONDON.N.
693 1903’ (top)
‘R
200’ (base)

Description Notes

Mahogany base carrying seven brass terminals and central electromagnet, topped by brass disc with vibrating bar. Knurled screw near base adjusts position of vibrating bar stops relative to the magnet. Amplitude of vibrations adjusted by brass screws to either side of end of bar. Terminals lettered D, D, S, T, M, U, U. Central section covered by brass cylinder with hinged lid and glazed top. Cylinder carries inscription near knurled screw: ‘Spacing Marking’.

Condition fair (surface heavily tarnished, minor nicks and scratches; wooden base broken); complete.

References

Events